Home / 31,799.48-43,883.45-19,869.74

Finding the Fourth Proportional to 31,799.48, 43,883.45 and 19,869.74

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Solution

The fourth proportional to 31,799.48, 43,883.45 and 19,869.74 is: 27,420.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,799.48 : 43,883.45 = 19,869.74 : x
  2. Step 2: Convert to fraction form
    31,799.48/43,883.45 = 19,869.74/x
  3. Step 3: Cross multiply
    31,799.48x = 43,883.45 × 19,869.74
  4. Step 4: Simplify right side
    31,799.48x = 871,952,741.80
  5. Step 5: Solve for x
    x = 871,952,741.80/31,799.48
  6. Step 6: Final answer
    x = 27,420.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.